-# Restarting nm (via systemctl): Warning: Unit file of created job changed on disk, 'systemctl --system daemon-reload' recommended.
-
import os, os.path
import tools
class Initscript:
- def __init__ (self, name):
- self.name=name
+ def __init__(self, name):
+ self.name = name
self.initscript = ''
- def configure (self, rec):
- logger.log("Initscript.configure")
+ def configure(self, rec):
+ # install or remove the slice inistscript, as instructed by the initscript tag
new_initscript = rec['initscript']
- if new_initscript != self.initscript:
- self.initscript = new_initscript
- # not used anymore, we always check against the installed script
- #self.initscriptchanged = True
- self.refresh_slice_vinit()
+ if new_initscript == self.initscript:
+ return
+ logger.log("initscript.configure {}".format(self.name))
+ self.initscript = new_initscript
+ code = self.initscript
+ sliver_initscript = "/vservers/%s/etc/rc.d/init.d/vinit.slice" % self.name
+ if tools.replace_file_with_string(sliver_initscript, code, remove_if_empty=True, chmod=0o755):
+ if code:
+ logger.log("Initscript: %s: Installed new initscript in %s" % (self.name, sliver_initscript))
+ if self.is_running():
+ # Only need to rerun the initscript if the vserver is
+ # already running. If the vserver isn't running, then the
+ # initscript will automatically be started by
+ # /etc/rc.d/vinit when the vserver is started.
+ self.rerun_slice_vinit()
+ else:
+ logger.log("Initscript: %s: Removed obsolete initscript %s" % (self.name, sliver_initscript))
+
+ def install_and_enable_vinit(self):
+ "prepare sliver rootfs init and systemd so the vinit service kicks in"
+ # the fact that systemd attempts to run old-style services
+ # says we should do either one or the other and not both
+ # but actually if that was true we could just do it for init and be fine
+ # which is not what we've seen starting with f18
+ # so we try for a systemd system, and if it fails it means
+ # one of the dir does not exist and so we are dealing with an init-based rootfs
+ try:
+ self.install_and_enable_vinit_for_systemd ()
+ except:
+ self.install_and_enable_vinit_for_init ()
# unconditionnally install and enable the generic vinit script
# mimicking chkconfig for enabling the generic vinit script
# this is hardwired for runlevel 3
- def install_and_enable_vinit (self):
- vinit_source="/usr/share/NodeManager/sliver-initscripts/vinit"
- vinit_script="/vservers/%s/etc/rc.d/init.d/vinit"%self.name
- rc3_link="/vservers/%s/etc/rc.d/rc3.d/S99vinit"%self.name
- rc3_target="../init.d/vinit"
+ def install_and_enable_vinit_for_init(self):
+ """
+ suitable for init-based VMs
+ """
+ vinit_source = "/usr/share/NodeManager/sliver-initscripts/vinit"
+ vinit_script = "/vservers/%s/etc/rc.d/init.d/vinit" % self.name
+ enable_link = "/vservers/%s/etc/rc.d/rc3.d/S99vinit" % self.name
+ enable_target = "../init.d/vinit"
# install in sliver
- code=file(vinit_source).read()
- if tools.replace_file_with_string(vinit_script,code,chmod=0755):
- logger.log("vsliver_vs: %s: installed generic vinit rc script"%self.name)
+ with open(vinit_source) as f:
+ code = f.read()
+ if tools.replace_file_with_string(vinit_script, code, chmod=0o755):
+ logger.log("Initscript: %s: installed generic vinit rc script" % self.name)
# create symlink for runlevel 3
- if not os.path.islink(rc3_link):
+ if not os.path.islink(enable_link):
try:
- logger.log("vsliver_vs: %s: creating runlevel3 symlink %s"%(self.name,rc3_link))
- os.symlink(rc3_target,rc3_link)
+ logger.log("Initscript: %s: creating runlevel3 symlink %s" % (self.name, enable_link))
+ os.symlink(enable_target, enable_link)
except:
- logger.log_exc("vsliver_vs: %s: failed to create runlevel3 symlink %s"%rc3_link)
+ logger.log_exc("Initscript failed to create runlevel3 symlink %s" % enable_link, name=self.name)
- # install or remove the slice inistscript, as instructed by the initscript tag
- def refresh_slice_vinit(self):
- code=self.initscript
- sliver_initscript="/vservers/%s/etc/rc.d/init.d/vinit.slice"%self.name
- if tools.replace_file_with_string(sliver_initscript,code,remove_if_empty=True,chmod=0755):
- if code:
- logger.log("vsliver_vs: %s: Installed new initscript in %s"%(self.name,sliver_initscript))
- if self.is_running():
- # Only need to rerun the initscript if the vserver is
- # already running. If the vserver isn't running, then the
- # initscript will automatically be started by
- # /etc/rc.d/vinit when the vserver is started.
- self.rerun_slice_vinit()
- else:
- logger.log("vsliver_vs: %s: Removed obsolete initscript %s"%(self.name,sliver_initscript))
+ # very similar but with systemd unit files - we target 'multi-user' in this context
+ def install_and_enable_vinit_for_systemd(self):
+ """
+ suitable for systemd-based VMs
+ """
+
+ ##########
+ ########## initscripts : current status - march 2015
+ ##########
+ #
+ # the initscripts business worked smoothly up to f18 inclusive
+ # with f20 and the apparition of machinectl, things started to
+ # behave really weird
+ #
+ # so starting with f20, after having tried pretty hard to get this right,
+ # but to no success obviously, and in order to stay on the safe side
+ # of the force, I am turning off the initscript machinery completely
+ # that is to say: the vinit.service does not get installed at all
+ #
+ if os.path.isfile('/usr/bin/machinectl'):
+ logger.log("WARNING: initscripts are not supported anymore in nodes that have machinectl")
+ return
+ vinit_source = "/usr/share/NodeManager/sliver-systemd/vinit.service"
+ vinit_unit_file = "/vservers/%s/usr/lib/systemd/system/vinit.service" % self.name
+ enable_link = "/vservers/%s/etc/systemd/system/multi-user.target.wants/vinit.service" % self.name
+ enable_target = "/usr/lib/systemd/system/vinit.service"
+ # install in sliver
+ with open(vinit_source) as f:
+ code = f.read()
+ if tools.replace_file_with_string(vinit_unit_file, code, chmod=0o755):
+ logger.log("Initscript: %s: installed vinit.service unit file" % self.name)
+ # create symlink for enabling this unit
+ if not os.path.islink(enable_link):
+ try:
+ logger.log("Initscript: %s: creating enabling symlink %s" % (self.name, enable_link))
+ os.symlink(enable_target, enable_link)
+ except:
+ logger.log_exc("Initscript failed to create enabling symlink %s" % enable_link, name=name)
git://git.onelab.eu / nodemanager.git / blobdiff